2564526264 has 32 divisors (see below), whose sum is σ = 6532287120. Its totient is φ = 838712576.

The previous prime is 2564526233. The next prime is 2564526329. The reversal of 2564526264 is 4626254652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1006797 + ... + 1009340.

Almost surely, 2^2564526264 is an apocalyptic number.

2564526264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2564526264 is an abundant number, since it is smaller than the sum of its proper divisors (3967760856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2564526264 is a wasteful number, since it uses less digits than its factorization.

2564526264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016199 (or 2016195 counting only the distinct ones).

The product of its digits is 691200, while the sum is 42.

The square root of 2564526264 is about 50641.1518826339. The cubic root of 2564526264 is about 1368.7865120845.

The spelling of 2564526264 in words is "two billion, five hundred sixty-four million, five hundred twenty-six thousand, two hundred sixty-four".